Stub-axle mount



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A. D. RCJEBIN STUB AXLE MOUNL A Filed Dec. 20 1925 F' f1 Patented Dec. 27, 1927,.

STATES PATENT OFFICE.

AZUR Il). HOBBIES, F NEW YORK, N. Y.,.ASSIGNR T0 INTERAATIONAL MOTOR COM- PANY, 01E' NEW YORK, N. Y., A. CORPORATION OE DELAWARE,

STUB-AXLE MOUNT.

Application filed December 20, 1926. Serial No. 155.833.

rlhis invention relates to combinedremovable oil retaining and bearing caps with particular reference to their application in wheel mountngs in automotive practice.

ln mounting wheels upon dead axles, such as the trout axle, it is customary to :journal a spindle carried with the wheel in bearings mounted in a knuckle supported upon the arle by a knuckle pin. The knuckle pin may be revolubly journaled in the endof the axle so as to provide means 'for steering the vehicle. llt is, therefore, apparent that the knuckle and knuckle pin torni the sole supporting and steadying means for the wheel.

lt has torinerly been the practice to sup ply the arde with biturcated ends, a wheel spindle and knuckle being disposed between the torks at each end and a knuckle pin bein@rl journaled between both torks thus prou vidinp; a satisitactorily rigid mounting" 'lor the wheel, but recently it has been round advantageous, especially since the general introduction ot i'ront wheel brakes, to torni but a single bearing tor the knuckle pin in each end ot the anle. @bviously then, some new means tor steadyinp,n the wheel .and pren venting shimmying had to be devised..

lroadly, such means may consist in substantially increasing the length ot the knuckle pin and providing an additional radial bearing,P below that termed in the end oit the axle to provide the necessary reaction to transverse stresses impressed. upon the wheel. le particular means tor accomplish-m ingithis has been illustrated in connection with the present invention, 'wherein the wheel is carried by a spindle journaled in a unitary knuckle and knuckle pin ilrccordn ing to the invention it is proposed to rno'unt the knuckle pin in a radial bearingn termed in the end ot the aide, wherein is also l'ornied a cavity tor the reception olf a thrust bearing; to carry the weight ol the vehicle, and at the end ol the knuckle pin there is provided an other radial bearingl bolted to the aide to provide the necessary reaction anda steady ing ineans, this bearing` at the saine time constituting an oil retaining; cap to prevent wastage or the oil used to lubricate the mov-- ing; parts ot the wheel mounting. n n

rl"he invention will now be described in greater detail in connection with the accom panying drawings, in which':

bipure l is a view in elevation ol one end oit an axle carrying wheel according to the invention, part of the Wheelbeing broken away, and showing, in section, the wheel mounting with the removable oil retaining, andbearmg cap.

Figure 2 is a view of the retaining nut tor the thrust bearin Figure 3 is avi'ew of the lock washer for the retaining nut shown in Figure 3.

.The end ot" the axle a is to be supported wholly" upon the wheelw through the uniI tary knuckle and knuckle pins la, p, the wheel spindle s being journaled in the knuckle if: as bv the bearings d, d.

rl`he end ot the axle o is reamed out as at r to receive the portion p of the knuckle pin p, a bushing;r l) bein@r interposed there-- between. llelow the portlon r the end oil the aille has termed therein a shoulder c and an enlarged cavity c adapted to accommodate the clip t lor the bearing t., Vllhe litnuekle pin p is threaded as at p2 'tor the nut n ben tween which and the lower race ot the bearing,r i is placed the 'lock washer l', the latter beingf held in place by a lug l :torined thereon which lits in a keyway e cut in the knuckle pin. 'llhe nut n is split asat nl so that it may be clamped down upon the threads p2 by means ot the bolt nl., lllhe nut n is prevented l'rom turning oil by a stud n which projects with the notches l cut into the periphery oil the lock washer l.. rlhestud nif is locked by means ot a wire nl passing; through holes in its head and twisted about the nut n.

llt willbe apparent trom the foregoing; description that the weight oit' the vehicle carried by the end o of the aide will be transn initted through the shoulder c to the bearing t," trom the bearing t to the knuckle pin p through the nut n; and trom the knuckle pin o through the knuckle 7c and the bearings ol and d to the wheel spindle s carried with the wheel w. But the structure thus liar re cited is not well adapted to resist transverse stresses impressed upon the wheel by sidesway oil the vehicle, irregnlarities in the roadbed, etc., To satisfactorily resist such stresses and prevent the wheel trom web bling or buckling under the following means were devised.

lll removable cap il, adapted to be bolted to the end ot the axle as by the cap screws t2, is provided. The cap )l is reained out as at it for the end ot the knuckle pin p3, a bushing b being placed therebetween to take Gli 'llll llll lllll lili lllll lll) up wear. A shoulder ha is formed in the end of thc cap against which abuts a disc (1 forming a closure for the bottom of the cap. The edges at the bottom of the cap may be peened over as at L to hold the disc in lace. p It will now be seen that there have been provided two radial bearings r and l1. to resist transverse stresses impressed upon the wheel. This design is particularly effective by virtue of the long knuckle pin used, since it will be seen that the upper radial bearing r may act as a fulerum and the necessary reactlon set up through the lower bearing h actin through a lever arm equal to the distancetbetween the bearings 1' and it.

To provide lubrication the knuckle k has formed therein a pasage c in which is disposed an oil cup o. The `knuckle in p is drilled out as at 7a4- partly to re uce its weight-and this passage is continued at a reduced diameter as at p5 to the end p7 of the pin. Radial passages p extend from the passage p* to the bearing 7'. Thus all the movable elements in the entire wheel mounting ma be lubricated by simply injecting oil throu the cup o, whence the lubricant may flow t rough the passage Ic to the bearings cl, d; through the pasages p4 and p to the bearing r; and through the passage p5 to the bearing L. Whatever lubrication is required by the bearing t is supplied by excess. A felt washer f may be provided to prevent leaka e of oil between the end ofthe axle and the knuckle.

Thus there has been provided a removable oil retaining and bearing cap which provides the necessary reaction to transverse stresses impressed upon the wheel, permits assembly of a thrust bearing mounting such as that shown and described, and serves to retain the lubricant used to lubricate the moving parts in the wheelmounting.

It will be, obvious that the knuckle pin is revoluble about its own axis in the end of the .axle to provide means for turning the wheel in steering.

Nothing that has been said in this specification is intended as a limitation upon the scope of the invention except as indicated in the appended claims.

What I claim is:

l. In a motor vehicle having an axle, a wheel mounting comprising, in combination, a unitary knuckle and knuckle pin, a wheel spindle. journaled in said knuckle, a radial bearing for the knuckle lpin formed in the end of the axle, a thrust bearing to support the axle upon the knuckle pin, and a removable cap carried by the end of the axle and having formed therein a second radial bearing for the knuckle pin.

2. In a motor vehicle having an axle, a Wheel mounting comprising, in combination, a unitary knuckle and knuckle pin, a wheel spindle journaled in said knuckle, a radial bearing for the knuckle pin formed in the end of the axle, a thrust bearing to support the axle upon the knuckle pin, a removable cap carried by the end of the axle and having formed therein a second radial bearing for the knuckle pin, and means com rising passages formed in the knuckle an the knuckle pin to lubricate all the moving arts in the wheel mounting through a sing e oil cup mounted in the knuckle.

3. In a motor vehicle having the end of an axle supported upon a wheel by a wheel mounting comprising a unitary knuckle and knuckle pin, said knuckle pin being journaled in a radial bearing formed in the end of. the axle and carryinga thrust bearing wherewith to support the load carried by the end of the axle, a removable cap ada )ted to be carried by the end of the axle an comprising a second radial bearing for said knuckle pin.

4. In a motor vehicle having the end of an axle supported upon a wheel by a wheel mounting comprising a unitary knuckle and knuckle pin, said knuckle pin being journaled in a radial bearing formed in the end of the axle and carrying a thrust bearing wherewith to support the load carried by the end of the axle, a removable cap adapted to be carried by the endl of the axle and comprising a second radial bearing for said knuckle pin spaced from said first named radial bearing.

5. In a motor vehicle having the end of an axle supported upon a wheel by a wheel mounting comprising a unitary knuckle and knuckle pin, said knuckle pin being journaled in a radial bearing formed in the end of t-he axle and carrying a thrust bearing wherewith to support the load carried by the end of the axle, a removable cap carried by the end of the axle comprising, in combination, a second radial bearing for said knuckle pin spaced from said first named radial bearing, and means to retain a lubricant used to lubricate the moving parts of the wheel mounting.

This specification signed this 14th day of Dec. A. D. 1926.

AZOR D. ROBBINS. 

